Just watched it - that's not getting "attacked," that's birds literally using the bow wave like a liquid highway. They're drafting off the boat's energy, riding the pressure wave.
Swordfish? Those are probably dolphins or flying fish. Swordfish don't leap around boats for fun - they're deep water predators, not surface acrobats.
But yeah, this is exactly what I meant about "surfing." Pure physics in action. 🌊